On Tuesday, July 28, 2020, Magento Commerce and Magento Open Source 2.4 will be released with General Availability.

This release will include important updates to security, quality, and platform technologies along with several new capabilities.

Additionally, it will also release the Security-only patch, 2.3.5-p2, providing Magento Merchants with another layer of security, designed to protect merchants from security breaches and online fraud.

​Highlights for Magento 2.4 release:

• Substantial security enhancements
• Platform upgrades and Removals
• Infrastructure improvements
• Performance improvements
• Adobe Stock Integration v2.0

There is much more in the Magento Open Source 2.4 updates, including new media gallery, page builder now supports PHP 7.4, changes in the checkout, inventory management enhancements, GraphQL enhancements, order approval workflow feature for B2B, vendor-developed extension enhancements, fixed issues.

https://devdocs.magento.com/release/

Magento Open Source Release – Calendar

Quarter	Versions	General Availability	Pre-release	Beta
2020 Q3	2.4.0 2.3.5-p2	July 28, 2020	None	June 8, 2020
2020 Q4	2.4.1 2.4.0-p1 2.3.6	October 15, 2020	October 1, 2020	September 10, 2020
2021 Q1	2.4.2 2.4.1-p1 2.3.7	February 9, 2021	January 26, 2021	January 5, 2021
2021 Q2	2.4.3 2.4.2-p1 2.3.8	May 11, 2021	April 27, 2021	April 6, 2021
2021 Q3	2.4.4 2.4.3-p1 2.3.9	August 10, 2021	July 27, 2021	July 6, 2021
2021 Q4*	2.4.4-p1 2.3.10	October 12, 2021	September 28, 2021	None